Effect of timing of immune checkpoint inhibitor monotherapy and application of hormone on the efficacy and safety of brain metastasis in advanced non-small cell lung cancer: a Meta-analysis
10.3760/cma.j.cn115355-20220326-00179
- VernacularTitle:免疫检查点抑制剂单药治疗时机和激素应用对晚期非小细胞肺癌脑转移疗效和安全性影响的Meta分析
- Author:
Binbin SHAN
1
;
Jinfang ZHAI
;
Hongwei LI
;
Xiaoqin AN
;
Chang ZHAO
;
Qiao HAN
;
Yuan LI
;
Weihua YANG
Author Information
1. 山西省肿瘤医院 中国医学科学院肿瘤医院山西医院 山西医科大学附属肿瘤医院呼吸一科，太原 030013
- Keywords:
Carcinoma, non-small-cell lung;
Brain neoplasms;
Neoplasm metastasis;
Immune checkpoint inhibitors;
Meta-analysis
- From:
Cancer Research and Clinic
2022;34(7):529-536
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the efficacy and safety of programmed death 1 (PD-1), programmed death ligand 1 (PD-L1) immune checkpoint inhibitor (ICI) monotherapy for brain metastasis in advanced non-small cell lung cancer (NSCLC), and to explore the timing of immunomonotherapy and the application of hormone on the efficacy of ICI.Methods:By searching literature in CNKI, Wanfang, VIP, PubMed, CBM, Embase, Cochrane Library and Web of Science databases, the advanced NSCLC patients with brain metastasis who received ICI treatment were identified, including patients with symptomatic brain metastasis who had received hormone therapy or brain surgery or radiotherapy. Meta-analysis was performed on the collected data to evaluate the systemic objective response rate (sORR) and intracerebral tumor objective response rate (iORR), the iORR of whether ICI monotherapy was first-line therapy, and the iORR of whether hormone was used were evaluated, and the incidence of adverse reactions was evaluated.Results:Fifteen studies were finally included, with a total of 4 033 patients, including 917 patients with brain metastasis. The iORR of immunomonotherapy was 26% (95% CI 19%-34%) and the sORR was 28% (95% CI 18%-40%). The iORR of first-line immunomonotherapy was 49% (95% CI 39%-58%). The iORR of symptomatic patients with hormone therapy and asymptomatic patients without hormone therapy was 26% (95% CI 20%-33%) and 19% (95% CI 16%-22%), respectively. The overall incidence of grade 3-4 adverse reactions was 14% (95% CI 11%-17%). Conclusions:The efficacy of ICI monotherapy in the first-line treatment of PD-L1-positive NSCLC patients with brain metastasis is better than that in the subsequent line therapy, and the application of hormone does not affect the efficacy of ICI. ICI monotherapy in the treatment of advanced NSCLC patients with brain metastasis is safe.
